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Account public key

A public key is a cryptographic code that allows a user to receive cryptocurrencies into his or her account. The public key coupled with the private key are significant tools required to ensure the security of the crypto economy.

XPUB is a master public key used to generate all addresses for an account in a hierarchical deterministic wallet (both already used and unused). As the XPUB key is a public key, it does not allow people to spend funds, but it does make it possible to listen in on all the transactions and balances connected to it.